APA (7th ed.) Citation

Breckon, L. S. (1940). Construction of the Bingham-Copperfield vehicular tunnel. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Breckon, L. S. Construction of the Bingham-Copperfield Vehicular Tunnel. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines, 1940.

MLA (9th ed.) Citation

Breckon, L. S. Construction of the Bingham-Copperfield Vehicular Tunnel. U.S. Dept. of the Interior, Bureau of Mines, 1940.